It takes Earth approximately 365.2422 days to orbit the sun once, this is known as the tropical year and is the length of the cycle of seasons. In a regular year, there are 365 days, and in a leap year there are 366 days. In a four-year period, one year being a leap year, what is the absolute difference between the number of days observed in the calendar years and the number of days in four tropical years? Express your answer as a decimal to the nearest ten-thousandth.